23321200320 has 224 divisors, whose sum is σ = 89751651840. Its totient is φ = 5653601280.

The previous prime is 23321200319. The next prime is 23321200333. The reversal of 23321200320 is 2300212332.

It is a happy number.

23321200320 is a `hidden beast` number, since 2 + 3 + 321 + 20 + 0 + 320 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 23321200293 and 23321200302.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 27652 + ... + 217731.

Almost surely, 2^23321200320 is an apocalyptic number.

23321200320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23321200320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44875825920).

23321200320 is an abundant number, since it is smaller than the sum of its proper divisors (66430451520).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23321200320 is a wasteful number, since it uses less digits than its factorization.

23321200320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 245420 (or 245404 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

Adding to 23321200320 its reverse (2300212332), we get a palindrome (25621412652).

The spelling of 23321200320 in words is "twenty-three billion, three hundred twenty-one million, two hundred thousand, three hundred twenty".